1. Lecture Notes in Computer Science;T. Nishida,2005
2. Lecture Notes in Computer Science;H. Kubota,1992
3. Kubota, H., Sumi, Y., Nishida, T.: Sustainable Knowledge Globe: A System for Supporting Content-oriented Conversation. In: Proceedings of AISB 2005 Symposium for Conversational Informatics for Supporting Social Intelligence & Interaction, pp. 80–86 (2005)
4. Lecture Notes in Computer Science;Y. Sumi,2005
5. Hirata, T., Kubota, H., Nishida, T.: Talking virtualized egos for dynamic knowledge interaction. In: Nishida, T. (ed.) Dynamic Knowledge Interaction, ch. 6, pp. 183–222. CRC Press, Boca Raton (2000)